paperchalice abde52aa66 [CodeGen][NewPM] Port LiveIntervals to new pass manager (#98118) ...

- Add `LiveIntervalsAnalysis`.
- Add `LiveIntervalsPrinterPass`.
- Use `LiveIntervalsWrapperPass` in legacy pass manager.
- Use `std::unique_ptr` instead of raw pointer for `LICalc`, so
destructor and default move constructor can handle it correctly.

This would be the last analysis required by `PHIElimination`.

2024-07-10 19:34:48 +08:00

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